package E2016;

public class e01 {
    public static void main(String[] args) {

        double d1 = 3.14159;
        double d2 = 3.14D;
        double d3 = 5.3E12; //科学计数法，5.3E12 == 5.3乘以10的12次方
        float f1 = 11.1F;

    }
}
